Rudolph hoffman



R. HOFFMAN.

OIL BURNER.

APPLICATION men ma. is, 919.

Patentd J une 15, 1920.

UNITED STATES PATENT OFFICE.

RUDOLPH HOFFMAN OF KANKAKEE. ILLINOIS` ASSIGNOR TOVSEARS, ROEBUCK AND C0., 0F CHICAGO, ILLINOIS, A CORPORATION OF NEW YORK.l

OIL-BURNER.

Application led January 15, 1919.

lle it known that l. llonoiirli llorFMAN, a oitizen ot the United. States, residing at Kankakee. in the eounty ol' Kankakee and State ol lllinois, have invented eertain new and uset'nl Improvements in Oil-llurners.y of whirh the following is a speeitieation,

The invention relntw` to oil healers, and more partirularly to burners' therefor 0iE the type comprising a tubular wirk mounted for vertiral movement between inner and onter wirk tubes and supporting a head or flame \preader. the latter living i-aided ior rerti eal movement with the wirk hy a ventral guide har; and the primary object oi the invention is to provide improved meansc tor limitinzer the upward movement of the flame Spreader and lherehy ot' the wirk` which isl adapted. upon a Simple movement of the spreader. to permit the removal ol the Spreader from its Support.

ln the present instaure. thin ohjeot olv the invention is attained hi' what may he termed a lleall -aull `Slot l ronnertion lli-tween tln l flame Spreader and its guide har. The slot is l'ornieil in the lop plate of the i preader and the head is formed on the upper end of the guide har which is seeured at ile lower end to the inner wink tnhe, the parte being So arranged with reference to ear'h other that in the normal pmition ol' the epm-ader its: upward movement iS limited hy the head. hut when the spreader is twisted slightly in one direttion il is rapahhl of detavhmeilt.

ln the accompanying drawings wherein l have illnetrated a` preferred emhodiment of the invention, Figure 1 is a central vertical sectional View through the upper portion of the wink tuhes olq an oil hnrner and Showingr a flame spreader snppwted in normal or operative position npon the Wink. Fig. Q is a vertical Seetional view taken on limI 2v2 of Fig. l. lint Showing l .e Spreader at the upper limit oi its movement. Fig. 5l is a fragmentary top plan View Showing the parte in the position Shown in Fig. 1. Fig. 4 is a similar tien' of the spreader detached from its support. Fig. 5 is a horizontal seotional View through the Spreader taken in the plane of line 5 5 oi' Fig. 1.

Referring to the drawings1 7 and 8 are respectively the inner and outer Wick tubes of a burner. between Whirh tnhes a Wick 9 is mounted for vertical movement by suit' Specification of Letters Patent.

Patented June 15, 1920.

Serial No. 271,198.

able and well known means (not shown). 1li indieates generally the llame spreader guided for vertical movement upon the wick 0 hy the flat bar 1l fixed with reference to the Wick tubes and extending through an opening;r l2 in the top of the llame `epreader. the upper end of the bar heilig provided with a head 13.

The niek talles and 8 are spaced apart in the ueual Way to provide a` channel for the wirk il; and thy Spreader 1l) may oomprise a 11]por-tingmember Ll, a perforated drum 1:1 and a top plate 1G. The bottom ol' said supporting nienlher is in the form of an open plate or .spider 17, while the lower end of the drum 15 is open so that air ma)y pass through the spider upwardly into the drum. A\t its upper end the supporting member has an annular wick llange IS.

'lhe guide har 1l is fixed with reference to the wick lnhe T eentrall)Y thereof b v ineaue4 of a pair of perforated plates 19 and 2li paz-ed apart a Short distance and Suitahly seeured lo the tube 7. l'lerein said platee are flexed awayr from each other at their realm-s and their peripheries are entered in grooves formed hy pairs of annula r haalde' ill. The lower end of the guide liar is entered through ventral Slots provided iu said platesv and it lvill he evident that when liked therein. as h i' Soldering, the har ie lirmliY held against vertical movement relativi` lo the tulle T in either direction.

At iteVL npper end the guide har is ent out at iiA opposite edges to form a neck 22 Whieh marries the head 13. Said neck is twisted slightly to panse the head to he disposed in a different rertieal plano from that of the har proper. The openingr l2 for the guide har is ol' an irregular Shape and may be deserihe'l as Consisting of two slots 23 and Q4 disposed tra'nerersely ol' eat-h other, The slot 23 in which the'gnide bar normally operatee is made ol a length substantially equal to the width of the guide har, While the slot 24 is formed by notching the o posite Side edges of the slot 23 and is ma e of a length rorreeponding to the width of thiJ twisted iii-vk portion 252. lt will he Seen that in the normal movement of the spreader upon its Support the ,froide bar proper will operate in the slot 23. and that the neck portion of the guide bar will operate in the slot 24, the slots Q3 and 24 being so disposed relative to each other as to correspond with the relative positions of the guide har proper and the neck portion thereof. The head 1 3, hmvever, beingr normally disposed in the plane of the slot 24 and beinl of a width greater' than the lengt-h of said slot. will he engaged in the upward movement of the spreader by the top plate 16 thereof at the opposite ends of the slot. and thus will limit the upward movement of the spreader.

'hen it is desired to detach the llame spreader from its support upon the wiel; 9, it will he evident that it is only necessary to twist or turn the spreader Slightly, when at the upper limit ot its movement. in order to carry the slot 9B into the vertical plane of the head lll. Thereupon the spreader may he .vithdrawn. the head paseu ing freelyT through the slot For the rpose of enabling the turning or twisting movemeiit oi" the spreader, 'the spider l? at the hottoni thereof is provided with a ventral opening li' whieh is enlarged at its opposite ends (Fig. :3) to permit. the swinging movement of the guide har therein.

In order to facilitate the operation of detai-.hing the spreader l'roni its support. the guide har is provided with a central. guide rod 2o which is circular in cross-section, und the opening l2 is shaped at itev renter to neatlj,l1 rereive Said rod. It will he eeen that during the passage of the nei-k portion ot' the har through the opening l2. and especially when the spreader is heing twisted to permit a withdrawal thereof. the rod roi'ip.- erating with said opening prevents any lateral movement 0l' the har which might oorur in the opening hy reason of the difforenres in the length of the opening and the width ol' the neuk portion. The rod may he mounted in the guide har in any suitahle way. Herein the har is provided with a ventral slot 2li of a length somewhat less' than the length of the rod and the opposite ends ol' the rod are 'provided with slots Z7 and lor engaging the har at tlul opposite ends of the slot 26. (lne of the slots. herein the slot 2H. is made of a depth sufficient to enahle the insertion of the rod into position in the sloty 26, and alter the rod is in position the walls ot' the Slot 2R may he lient inwardllv. as at, itil (Fig. 2) to prevent a removal of the rod from the har. As ran he seen from Fig. 5. the ,opening i7". in the spider 17, is also shaped to permit the passage of the rod Q5 therethrough.

lt will be seen that l have provided means for limi` ig the upward movement of the wick of an oil hurner, which is of a very prat-ti lal rharacter. The construrtion is very simple. as is also the operation of releasing the spreader from its position upon the supporting wick. Furthermore, the parts are of such a character as to be practically nnatl'eeted by the heat from the burner, and there are no loose parte. to neeonie disarranged or lost.

l claim ae my invention:

l. In an oil burner. a wichs nieansfor guiding the wick including a tuhe, a flame spreader carried hy the wink and having a top plate. and a guide har for said spreader mounted eei'itrally of said tuhe and having a twisted neel( portion at its upper end and a head en said neck portion disposed in a plane tieneversel)` of the har, said top plate having a` pair ot' transverse slots therein, one for said neck portion and one for said head ijiortion, said slots being adaptedto permit the oar and neck to pass therethrough and permitting a passage ol' the head therethrough alter the. spreader has heen tnrned through a fixed are ot' movement.

z'. ln an oil burner, a` with. means for guiding the wink inmuding a tulle. a llame laprender carried hv the wink and having a top plate. and a guide har for said spreiuler mounted rentrally ot' said tulle and having a head on its upper end disposed in a plane transverse!iY ot the har. said top plate having a slot therein through which the bar is arri'u'zged to pass in tlm` normal movements of the spreader. and said head being adapted to normally engage with the top plate to limit the upward movement ot' the spreader laut permitting the detachment of the spreader after it has heen rotated through a definite are of movement.

2l. ln an oil burner. a wirk. nie-ans for guiding the wirk including a` tube. a` flame Spreader carried Irv the wink and having a transverse plate. a guide liar for said spreader mounted renti-allyT ot said tuhe` and a` f'onnei-,tion between the spreader and guide liar comprising a head ou the har and a slot in said plate for reneivng the head. said head and slot eoaiting to normally limit the upward n'lovei'nent of the spreader hut permit a witlulrawal thereof when the spreader is given a definite movement out of its normal position.

4. ln an oil burner. a wirk. a llame spreader' carried hy the wil-k and having a transverse plate. a guide har for said spreader having a head on its upper ond disposed in a plane tra nsversoly ot the har, Said plate having a slot therein through whirh the har is arranged to pass in the normal movements of the spreader` and said head heilig adapted to normally engage with the plate to limit the upward movenient ot' the Spreader hut permitting the detar'lnnent of the spreader after it has heen rotated to hring its slot into register with the head. and a guide rod carried hy the har and engaging with said plate to prevent a lateral movement of the spreader relative to the bar during the rotation of the spreader.

5. In an oil burner, a Haine spreader, a

fixed guide bar for said spreader, and a connection between said guide bar and spreader comprising a head on the bar and a part on the spreader having a slot with which said head is adapted to coaet to permit of a limited vertical movement of the spreader and releasable by a movement of the s reader relative to the guide bar.

G. n an oil burner. a flame spreader, a fixed guide bar for said spreader, and a connection between said .guide bar and spreader 1 comprising a head on said bar and a slot in sald spreader, said head belng normally of movement of the to pass through the spreader but adapted is moved bodily out slot when the spreader of its normal position.

7. In an'oil burner, fixed guide bar for said spreader, a connection between said guide bar and spreader comprising a head on said bar and a slot in a flame spreader, a

spreader but adapted to pass slot when the spreader is rotated through a fixed are of movement, and means for preventing the lateral movement of the bar in said slot during the rotation of the spreader relative thereto.

8. In an oil burner, a flame spreader, an upright stationary member adapted to guide the spreader in its up and down movement, and a connection between said spreader and said member adapted to permit of a limited vertical movement of the spreader and rileasable by a rotation of the spreader relative to said member through a fixed arc oi movement.

9. In combination with a plate member and a bar member, one of said membersP being movable and the other stationary, a connection adapted to permit of limited relative movement between said members comprising a pair of slots in the plate memthrough the ber extending transversely of each other and one being of greater length than the other. a twisted neck on the bar membei, and a head on said neck of a Width substantially equal to the length of the longer slot but normally disposed in the plane of the shorter one of said slots, the parts being relatively movable to cause the head and the longer one of Said slots to lie in the same plane. i

l0. In combination with a plate member' and a bar member, one of said members being movable and the other stationary. a connection adapted to permit of limited relative movement between said members romprisinlrr a pair of slots in the plate member extent ing transversely of each other and one being of greater length than the other. a twisted necrli on the bar member, and a head on said neck of a width substantially equal to the length of the longer slot but normally disposed in the plane of the shorter one of said slots, the parts being relatively movable to cause the head and the longer one of said slots to lie in the same plane and said bar member having a part cooperating with the plate member to prevent relative lateral movement between said members.

l1. In combination with a plate member and a bar member one of which is stationary and the other movable, a connection adapted to permit of limited relative movement between said members comprising a slot in the plate member, a head on said bar member normally disposed in a plane extending transversely of said slot. the parts being relatively movable to valise the head and slot to be disposed in the same plane whereby to permit of a disconnection of the members` and a part carried by the bal' member and coperating with the plate member to prevent relative lateral move- -ment between said members.

In testimony whereof, I have hereunto set my hand. 

